Communications: directive radio wave systems and devices (e.g. – Determining distance
Reexamination Certificate
2006-03-07
2006-03-07
Sotomayor, John B. (Department: 3662)
Communications: directive radio wave systems and devices (e.g.,
Determining distance
C342S128000
Reexamination Certificate
active
07009552
ABSTRACT:
A radar device for measuring distance within short range is provided. The radar device has a first wave-detecting circuit for multiplying radio wave voltage being transmitted from a transmitting antenna by radio wave voltage being received by a receiving antenna, in addition, the device has a second wave-detecting circuit for multiplying radio wave voltage being transmitted from the transmitting antenna by radio wave voltage shifted by the shifting means from the radio wave being received by the receiving antenna. Alternatively, the second wave-detecting circuit may multiply radio wave voltage shifted by the shifting means from the radio wave being transmitted from the transmitting antenna by radio wave voltage being received by the receiving antenna. Based on output voltages from the first and second detecting circuit, the distance to the target may be decided unambiguously.
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“Smart Tools. High-tech features are finding their way into hard-core tools.”, Mark Clement, Publication Date: Jan./Feb. 2001; http://www.toolsofthetrade.net/articles/showarticle.asp?articleID=1641&position=0&type=article.
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Makita Corporation
Orrick Herrington & Sutcliffe LLP
Sotomayor John B.
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